Nexus 5 not charging after 4.4.3 update

Nexus 5 not charging after 4.4.3 update

Hello All,
Good day
I have updated 4.4.3 yesterday in my phone which google given me notification.

After update , My device is not charging. I tried below things,
1) connected with charger, came along with box.
2)Tried connecting USB with PC.
Both not working.
Second issue , If i switch off my device and connect it to charger, Its again booting up like restarting device.

Note : Sometime , after connecting to charger, if i restart my device, charging but am not able to see in notification bar.

Please help me in tis regard. since i dont have much knowledge technically in smart phone era, It would be great if i get your support here.